Public Water Systems
3,215 active public water systems in MD, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| MARYLAND LINE VOL FIRE CO | MARYLAND LINE, MD | 29 | 6 | — |
| HUNT VALLEY BAPTIST CHURCH | COCKEYSVILLE/HUNT VALLEY, MD | 29 | 9 | — |
| ST PETERS LUTHERAN CHURCH | HAMPSTEAD, MD | 29 | 3 | — |
| SALEM UM CHURCH | UPPER FALLS, MD | 29 | 0 | — |
| MONKTON GENERAL STORE | MONKTON, MD | 29 | 0 | — |
| CEDAR GROVE UNITED METHODIST CHURCH | PARKTON, MD | 29 | 4 | — |
| PEARLSTONE CONFERENCE CTR. SPORTS ARENA | BALTIMORE, MD | 29 | 6 | — |
| POPLAR GROVE METHODIST CHURCH | PHOENIX, MD | 29 | 0 | — |
| GOUGH UNITED METHODIST CHURCH | COCKEYSVILLE/HUNT VALLEY, MD | 29 | 0 | — |
| HOLIDAY PARK POOL | GREENSBORO, MD | 29 | 1 | — |
| COHEES 404 RESTAURANT AND LOUNGE | PRESTON, MD | 29 | 2 | — |
| HOLIDAY PARK SITE 100S | GREENSBORO, MD | 29 | 0 | — |
| HOLIDAY PARK 200S | GREENSBORO, MD | 29 | 0 | — |
| HOLIDAY PARK 300S | GREENSBORO, MD | 29 | 9 | — |
| WAYNE QUIDAS MLC BELL CREEK | PRESTON, MD | 29 | 1 | — |
| CLAYTON FARMS | DENTON, MD | 29 | 0 | — |
| SCENIC VIEW MOTEL | FINKSBURG, MD | 29 | 27 | — |
| BEL ALTON VFD | MD | 29 | 5 | — |
| THE PAVILION AT WEATHERLY | NEWBURG, MD | 29 | 0 | — |
| 4 HOOPPOLE SOUTH | OAKLAND, MD | 29 | 4 | — |
| CARMEL COVE | OAKLAND, MD | 29 | 0 | — |
| BOATEL CALIFORNIA | CALIFORNIA, MD | 29 | 30 | — |
| KELLAN'S SEAFOOD | RIDGE, MD | 29 | 0 | — |
| LOWES WHARF MARINA | SHERWOOD, MD | 29 | 4 | — |
| IZAAK WALTON LEAGUE OF WASHINGTON CO | CLEAR SPRING, MD | 29 | 0 | — |
| DELMAR MANOR ASSISTED LIVING | SALISBURY, MD | 29 | 6 | — |
| SUN VALLEY ASSISTED LIVING 2 - MEADOWS | SYKESVILLE, MD | 28 | 4 | — |
| CLEAR VIEW MOBILE HOME PARK LLC | DARLINGTON, MD | 28 | 18 | — |
| FAIRWINDS BEACH CLUB INC | SEVERNA PARK, MD | 28 | 0 | — |
| BOURBON TAVERN | HANOVER, MD | 28 | 2 | — |
| PLEASANT GROVE U MC- TRACEY BUILDING | FROSTBURG, MD | 28 | 8 | — |
| WARDS CHAPEL UMC AND PRESCHOOL | RANDALLSTOWN, MD | 28 | 4 | — |
| FREELAND CRAB SHACK & SEAFOOD | FREELAND, MD | 28 | 0 | — |
| EMMAUS MISSIONARY BAPTIST CHURCH | OWINGS MILLS, MD | 28 | 0 | — |
| BAY BREEZE STATE PARK | ABINGDON, MD | 28 | 0 | — |
| FRIDAYS CREEK WINERY | SUNDERLAND, MD | 28 | 4 | — |
| VFW POST 5246 | FEDERALSBURG, MD | 28 | 5 | — |
| WALKERS MARKET STORE | MARYDEL, MD | 28 | 4 | — |
| D AND B TAVERN | GREESBORO, MD | 28 | 1 | — |
| STATE LINE GAS | MARYDEL, MD | 28 | 1 | — |
| GREENSBORO MOBIL | ANNAPOLIS, MD | 28 | 7 | — |
| FRASE'S MEAT SHOP / GRILLS ON WHEELS | PRESTON, MD | 28 | 0 | — |
| CATHCART RAIL (APPALACHIAN TANK CAR SER) | ELK MILLS, MD | 28 | 57 | — |
| WESLEYS RESTAURANT | ELKTON, MD | 28 | 42 | — |
| DOLLAR GENERAL #21451 | GOODLETTSVILLE, MD | 28 | 5 | — |
| ONE STOP TRAVEL PLAZA | NEWBURG, MD | 28 | 9 | — |
| OLD SALTYS RESTAURANT | FISHING CREEK, MD | 28 | 0 | — |
| SYNERGY SPORTS | FREDERICK, MD | 28 | 2 | — |
| MADONNA HERITAGE BOARDING HOME | YORK, MD | 28 | 1 | — |
| SUSQUEHANNA STATE PARK (CAMPGROUND) | ELKTON, MD | 28 | 1 | — |